public class Main {
    public static void main(String[] args) throws Exception {
        System.out.println("Hello, World!");
        int[] ns ={1,2,3,4,5};
        System.out.println("length:"+ns.length);
        for(int i=0 ; i<ns.length;i++){
            System.out.println(ns[i]);
        }
        

      
    }
}
